The head of Blockstream, Adam Back, in a discussion with the Bitmain co-founder , Jihan Wu, confirmed that in the mid-term, Bitcoin Core developers are considering the possibility to increase block size provided no spam on network and only with testing.

The controversy with the Jihan Wu came on the background of an ongoing spam mempool network bitcoin and unprecedented attack on the original chain in social networks on the part of Bcash supporters. They insist that resulting from the August hardfork network is a true continuation of the vision of Satoshi Nakamoto, and that only Bcash can be considered a real payment system, providing a fast and inexpensive transaction.

In response to a comment by Wu that the developers of Bitcoin Core, although that should think about increasing the size of the block, Adam Back wrote:

probably mid-term with enough testing yes. but in the mean time it would be nice if people would stop spamming. thanks.

It is worth noting that in 2014, Adam Beck described the plan of gradual increase of block limit to 2Mb, 4Mb and 8Mb until payment channels of the second level are fully embedded in the bitcoin ecosystem. However, each of the blockchain, including bitcoin, there are certain limitations on increasing the size of the blocks.

In addition, a large part of the community is convinced that increasing the block limit is not a long-term solution to scalability issues, because it will eventually lead to centralization of the network: it is assumed that in this scenario most nodes will have more time to validate the blocks than to generate them. As a result, nodes virtually cease to support the network, leaving only the largest players.

Thus, it can be assumed that the developers will resort to increasing the size of the block only in case of acute necessity, when the commissions will become unaffordable for the majority of the community members.